Board and Batten Shutters: DIY or Buy?

Today I'd love some help from y'all in deciding whether to "DIY or buy" for a BIG project at the river house - shutters! These current ones are pretty old and have taken a beating over the years just like anything on the outside of a house. Here they are in their current state:

Up close, you can see that the black paint is starting to peel away from the edges and is faded in some areas.

My parents have been talking about replacing them instead of having them repainted, and I, being the project-lover that I am, volunteered my services to try and make them myself. I got hesitant looks from everyone when I suggested it. Uh oh! And when I tried the idea of making them on a handy friend of my parents', he thought I was crazy.

Now, there are a lot of shutters on this house (about a dozen or so windows), so it would be a big job, but I don't think it would necessarily be hard. The style we'd be going for is board and batten to add a casual, cottage feel to the house. We haven't chosen a color yet, but it will probably be in the aqua or light blue-green gamily.

Here are some shots of my favorites that I've found for inspiration:

{Garden Design via House of Turquoise)

{Traditional Product Galleries}

{Jules Duffy}

{Southern Living}

{Authentic Shutters}

So what do y'all think? Am I crazy for wanting to attempt this myself? Am I getting in way over my head with this project? I'd really love your insights!

Here's a very very rough photoshopped version of what these shutters could look like. Don't judge me for my lack of photoshop skillz...or the weird shadows on the shutters I cut out ;).